package lab02.test32;

import java.util.HashMap;
import java.util.Map;

/**
 * Created by lenovo on 2017/11/9.
 */
public class Test {
    public static void main(String[] args) {
        Map<String,String> person=new HashMap<>();
        //id—>"1"、name—>"张三"、gender—>"男"、 age—>"25"、love—>"爱学Java"
        person.put("id","1");
        person.put("name","张三");
        person.put("gender","男");
        person.put("age","25");
        person.put("love","爱学Java");

        //遍历这个Map
        for (Map.Entry<String,String> entry:person.entrySet()){
            System.out.println(entry.getKey()+","+entry.getValue());
        }

        System.out.println("集合的大小："+person.size());

        //删除key为age的记录
        for (Map.Entry<String,String> entry:person.entrySet()){
            if (entry.getKey().equals("age")){
                person.remove(entry.getKey());
            }
        }

        System.out.println("map集合的大小是："+person.size());
    }
}
